Machine for facing corrugated paper.



e. W. SWIFT, JR. MACHINE FOR FACING CORRUGATED PAPER.

APPLICATION FILED JULY 15, 1908.

Patented Apr. 6, 1909.

2 SHEETS-SHEET 1.

N NNNRN WITNES SES:

% 4 fig G. W. SWIFT, JR. MACHINE FOB. FAGING CORRUGATED PAPER.

APPLICATION FILED JULY 15, 190B.

Patented Apr. 6, 1909.

2 SHBETSSHEET 2.

WITNESSES: k

UNITED STATES PATENT Enron.

eno aen W. swirr, 1a., or BORDENTOWN', NEW JERSEY.

MACHiNE FOR FACING CORRUGATED PAPER.

To all whom it my concern:

Be it known that I GEORGE W. SWIFT, J r.,

'of Bordentown, in the State of New Jersey, have invented a certain new and useful ImfIhe machinahereinafter described, com-- prises endlessbelts of flexible sheet metal aving opposed runs between which the paper webs are fed; means for drying said webs comprising opposed stationary heaters embracing said belt" runs; means arranged to feed the webs at a constant rate; shearing mechanism comprising rotary knives arranged to cut the final web sheets of diiferent lengths gearing operatively connecting said feedmg mechanism with said'shearing mechanism, changeable to vary the length of time required fora complete revolution of said knives; and, means. comprisingfa'fpa'ir of ellipticalgears, arranged to make the peripheral speed of said knivesmomentarily equal to the speed of said webduring the shearing operation, regardless ofvariation in the time of revolution of said knives. Moreover, I provide means to vary the space hetween said heaters in correspondence'with the required thickness of the final multiple paper web, andmeans adjustably connecting said heaters with a steam supply, permittin such variation in the space betweensai heaters without disconnection ofthe steam conduits; such means comprising pi es eX- tending from the upper heaterin te escopic conniection with pipes leading'to the steam. su y.

y invention comprises the various novel features of construction and arrangement hereinafter more definitely specified.

In the drawings: Figures I and II show complementary portions of a side elevation of a machine conveniently embod ing my invention; said elevation being made in two views for convenience of illustration. Fig. 111 is a fragmentary perspective view show- Specificationof Letters Patent.

Application filed July 15, 1908. 'seria1No.44s,604. I

Patented April 6, 1909.

ing one of the upper heaters raised from its normal position to afford access to the belts extending between the upper and lower heaters.

In said figures; 1 is a reel supporting a roll of corrugated paper web 2 which is Wound with a plane paper web 3. Said two webs pass beneath the guide roller 4, conveniently supported in the brackets 5 extending from the machine frame 6. As shown in Fig. I, the corrugated paper web 2 passes in contact with the paste roll 8 which is mounted to rotatein the paste receptacle 9, which is provided with the dofier roll 10 and supported in a stationary position on said frame 6, and, said corrugated web 2 is thus coated with adhesive on its lower surface.

r The reel 12, shown in Fig. I, carries a roll of plane paper web 13 which passes between the steam pipes 14, 15, and Y16, so as to remove the curl from it before being brought intocontact with the adhesive coatedsurface of said corrugated web 2. The opposed flexible sheet metal belts 1-8 and 19, are respectively supported on the drums 20 and 21 and theirproximal rims pass between the pair of guide rolls 22 and the pair of feed rolls 23 and 24 which.are so mounted in bearings on said frame 6, that the space betweenthem, for the passa e'ofjthe paper, may be adjustably varied by rotation of the screws 25. Said bolts 18and '19 are maintained at the proper tension by the. respective tightening rollers 6 and 27 which are respectively adiustable upon the studs 29 and 30 carried in rigid relation with said frame 6; such adjustment being conveniently' effected by means of the arms 32 and 33 which have split hubs which may be tightened or loosened with respect to said studs 29 and 30 by .means of the bolts 35 and 36. The proximal runs of said belts 18 and 19, pass between the opposed heaters which are conveniently formed of se arable metal boxes 38 and 39, the former eing maintained'in stationary position on said frame 6 and the boxes 39 being vertically adjustable to vary the space between them and the boxes 38 bymeans of set screws 40 which extend through correspondin screw threaded sockets in the lugs 41, and b lugs 42.-

ear upon the upper surfaces of the Steam. issupplied to and condensate'withtending upon respectively opposite sides of the frame 6 and conveniently supported in rigid relation with the latter. aid pipes have permanent branch connections 47 wlth the boxes 38, and have stuffing boxes 50 through which the branch connections 51 leading to the boxes 39 may be reciprocated without disconnection, so as to not only permit of such variation in the space between the upper and lower heaters as is necessitated by the differing thicknesses of the cellular board product of the machine, but also to permit the upper heaters 39 to be raised to an abnormal extent as shown in Fig. III so as to afiord access to the space between the up er and lower heaters and the metallic be ts extending between them, and thus permit the ready removal of any obstruction from said space.

It may be observed that by the arrangement above described, the opposed runs of the-metallic belts 18 and 19, by and between which the paper webs are carried, may be heated to any desired degree independently of the other portions of the belts, and thus serve to distribute the heat rapidly and uniformly to said webs while maintaining the latter in predetermined assembled relation during their passage between the heaters 38 and 39, and, that the space between said belt runs determining the thickness of the lane faced cellular paper board roduct o the machine, may be adjusta ly varied. by clfanging the relative position of the feed rolls 23 and 24, independently of the drums 20 and 21, which support and drive said belts. V

In order to ositively progress at constant speed said be ts 18 and 19 and the cellular board formed between them; the main driving shaft 52 shown in Fig. II is provided with the driving gear 53 in mesh with the gear 54 on the drum 21; saidgear 54 is meshed with the gear 55 on the drum 20; said feed rolls 23 and 24 are connected by the gears 56, and, said roll 24 has the gear. 57 meshed with-the gear 58 driven by the gear 59 carried by said mm 21. Said gears 56 have long teeth to permit variation of the space between them as above described;

As shown in Fig. II; the shearing mechan- ,ism comprises the opposite rota knives 60 and 61 res ectively carried by t eshaft 62 and 63 an connected by the gears 64 and 65 Said shearing mechanism is operatively connected in variable relation with said driving shaft 52 and its gear 53 by the train of earin comprising the elliptical gears 67 an 68, t e former being on the shaft 63 of the knife 61 and the latter being on the shaft 7 0, and both being adjustable circumferentially on theirshafts and having means to secure them in adjusted position. Said shaft 7 0' carries the gear 71 meshed with the ear 72 on the shaft 73 and the axis of the 65 atter is the center of oscillation of the ad- 'cumference, the

justable frame 74 which may be manually shifted to change the gearing, but is retained in a normally stationary position by the bolt 75 which engages the frame of the machine. Said shaft 73 carries the gear' 76 meshed with the gear 77 on the shaft 78 carried by said frame 74, and, said shaft 78 is provided with the gear 79 meshed with the gear 59 on said drum 21. As above noted, said frame 74 and the gears carried thereby may be manually shifted to change the ratio of the gearing connecting the main driving shaft 52 with the shearing mechanism; for instance, said frame 74 may be turned on its center of oscillation co-incident with the shaft 73, to withdraw the gear 79 from engagement with the gear 59 and present the gear'77 in engagement with said gear 59, with the result that the shearing mechanism will be rotatedslower than when the gears are connected as shown in Fig. II. As the speed of traverse of the webs forming the cellular board 80 is maintained constant as above described, the length of said board passed through the shearing mechanism during a single revolution of the latter will be greater, with the proposed change of gearing, and consequently the sheets cut from said board 80 will be longer than the sheets cut with the gearing connected as shown in Fig. II.

It may be observed thatequal circular gears might be substituted for the elliptical gears above described if the shearing mechanism were always rotated at such speed that the length of the cellular board, passed therethrough during a sin 1e revolution equaled the respective circum erences'of the counterpart circles described by the complementary shearing radii of the knives 60 and 61; because, under such conditions, the speed of the knives at the instant of the shearing operation, as well as during the other part of their rotation, would e ual thespeed of traverse of saidboard and the latter would be cleanly out. However if while the speed of the webs is maintained constant, the shearing mechanism were caused to rotate faster, to cut sheets of less length than said described circumference said knives would travel faster than said board at the instant of the shearing o oration, and-would tend to tear it, and, on t e other hand, if the shearing mechanism were caused to rotate slower, to cut sheets of reater length than said cirimives would travel slower than said board at the instant of the shearing operation and would tend to retard and crush it. Therefore, I include in the train of gearing to drive the shearing mechanism, the elliptical gears above described, which are circumferentiallv adjustable and may be secured in variable angular position on their res ective shafts, so that, in accordance with suc variations in the'rate of rotation of said knives as are required to shear sheets of difand 61, and, to insure that the paper shall be 'ferent'lengths said gears maybe so set that thespeed 'ofthe knives at the instant ofea-ch shearing operation shall be equal to the speed of traverse of said board, so as to cleanly cut the latter. In other words, it'being characteristic of the machine above described that the webs are fed therethrough at a constant rate, by means of the frictional engagement of the metallic belts 18 and 19 between the feed rolls 23 and 24; the'length of the sheets cut from the cellular board 80 is varied by varying the rate of rotation of the knives 60 sheared without tearing or crushing it, said knives are caused to move at the same speed as said webs while in engagement therewith,

. gated paper web with and between plane facing webs, including op osed endless belts of sheet metal respectively in contact with said facing webs; o posed heaters comprising plane faced oxes supplied with steam; mechanism supporting said heaters upon respectively opposite sides of said webs, with a predetermined space between them for the passage of said webs; mechanism whereby the space between said heaters may be varied; means arranged to connect a the upper heater with a steam supply, permitting said heater to be raised and lowered and comprising a telescopic pi e connection; shearing mechanism for said webs, comprising opposed rotary knives connected by elliptical caring; gearing variable to change the spee of rotation of said knives; and, means connecting said shearing mechanism to operate in definite relation with said belts. 2.: In a machine for facing corrugated paper, means arranged to progress a corruated pa er web with and between plane acing we s, including op osed endless belts of sheet metal respectively in contact with said facing webs; opposed heaters upon 0 posite sides of said webs; means whereby -t e space between said heaters may be varied; shearing mechanism for said webs, comprising opposed rotary lmives connected by elliptical gearing; gearing variable to change the speed of rotation of said knives; and means connecting said shearing mechanism to operate in definite relation with said belts.

.contact with said facing webs;

'ism for said webs com 3. In a machine for. facing corrugated paper, means for progressing a corrugated paper web with plane 'facin webs upon opposite sides thereof, inclu ing opposed endless belts of sheet metal respectively in opposed heaters upon opposite sides of said Webs; shearing mechanism for said webs comprising opposed rotary knives connected by gearing; gearing variable to change the speed of rotation. of said knives; and, means connecting said shearing mechanism to operate in definite relation with said belts.

4. In a machine for facing corrugated paper, means for progressing a corrugated paper web with plane facing webs upon opposite sides thereof; opposed heaters upon opposite sides of said webs; shearing mechanrising opposed rotary knives connected by e 1i tical gearing; gearing variable to change t e speed of rotation of said knives; and, means connecting said shearing mechanism to operate in definite relation with said feeding mechanism and with said belts.

5. In a machine for facing corrugated aper; the combination with movable endess belts of flexible sheet metal having opposed runs; of means arranged to direct, between said opposed belt runs, a corrugated pa er web, with and between lane facln we s; drums supporting said be ts arrange to drive them in unison; feed rolls between which said belt runs pass, having means arsai means arranged to heat said belt runs independently of the other portions of the belts.

6. In a machine for facing corrugated aper, the combination with movable endlisss belts of flexible sheet metal having opposed runs; of means arranged to direct, be-

tween said opposed belt runs, a corrugated pa er web, with and between plane facin we s; drums supporting said he ts arrange to drive them in unison; feed rolls between which said belt runs pass, having means arran ed to adjustably vary the space between saifruns avhereby said webs are carried by and moved in unison with said belts; and

means arranged to heat said belt runs inderan ed to adjustably vary the space between (I runs, whereby said webs are earned by and moved in unison with said belts; and' pendently of the other portions of the belts, I

comprislng stationary plane faced steam boxes between which said belt runs extend. 7. In a machine for facing corrugated aper, the combination with movable endess belts of flexible sheet metal having opposed runs; of means arranged to direct, between said opposed belt runs, a corrugated paper web, with and between lane facln we s; drums supporting said he ts arrange to drive them in unison; feed rolls between which said belt runs pass, having means arranged to adjustably vary the space between said runs, whereby said webs are carried by and moved in unison with said belts; and means arranged to heat said belt runs independently of the other portions of the belts,

comprising steam receptacles above and below said belt runs havlng telescopic connection with pipes leading to the steam supply.

8. In a machine for facing corrugated aper, the combination with movable endess belts of flexible sheet metal having opposed runs; of means arranged to direct, between said opposed belt runs, a corrugated pa er web, wlth and between lane facing We s; drums supporting said be ts arranged to drive them in unison; feed rolls between which said belt runs pass, having means arran ed to adjustably vary the space between sai runs, whereby said webs are carried by and moved in unison with said belts; means adjustable to vary the tension on said belts in correspondence with the adjustment of said feed rolls; and, means arranged to heat said belt runs independently of the other portions of the belts.

9. In a machine for facing corrugated paper, the combination with movable endess belts of flexible sheet metal having'opposed runs; of means arranged to direct, between said opposed belt runs, a corrugated pa er web, w th and'between plane facln we s; drums supporting said be ts arrange to drive them in unison; feed rolls between which said belt runs pass, having means arranged to adjustably vary the space between said runs, whereby said webs are carried by and moved in unison with said belts; means adjustable to vary the tension on said belts in correspondence with the adjustment of said feed rolls, comprising independently ad-' justable rollers for the respective belts; and, means arranged to heat said belt runs independently of the other portions of the belts.

In testimony whereof, I have hereunto signed my name at Bordentown, New Jersey, this thirtieth day of June, 1908.

GEORGE SWIFT, JR. 

